Hey Darsana, You have got the best cliff beach of india right next to you Bro ... Thats varkala and its only 50 Kms from trivandrum and also a very beautiful road to ride on ... Go ahead with that as weekend is all enough to explore varkala ... here's my itinerary for you :- https://www.google.com/amp/s/www.tripoto.com/trip/wandering-in-varkala-597d7e2a90f1f.amp You can also go on a bike trip to Kanyakumari which is also a Weekend getaway from Thiruvananthapuram .... Happy Travelling Bro!!!